Question dram led red

[Guirguis]

my pc stops working the fans working but the screen "no signal"and there is no power in the usb slots, in the motherboard dram led red light but i tried everything, one ram in all the slots, cmos reset, another Gpu and nothing changed the dram led on and no power in the usb slots

specifications
gigabyte b450 elite
ryzen 5 2600
2× 8G hyperx 3200 ddr4
radeon rx 590

 

[rgd1101]

brand and model of the psu?

 

[Guirguis]

brand and model of the psu?

cooler master 600W TM-6001-ACAAN1